Looking for a nice relaxed biking trip around the gorgeous Folsom lake? Maybe you are looking for a hard technical trail? The granite bay mountain bike trail offers both for anyone interested in spending a nice relaxing day around the late. FYI, if you go in the summer months it will be hot! the area is made of dirt and flatlands with little shade throughout so you will sweat. Try to look online for the route since it splinters off in a plethora of ways. We got lost and ended at the actual lake but it was a fun deviation. Lots of hills too! Lastly, if you bike to the top you can have a gorgeous view of the lake and surroundings, maybe take a dip. PS. Parking is not free.